I have an odd problem with 9.2 that was not present with 9.1.
Namely, the GL modules for xscreensaver (5.08) won't play any
more. Start xscreensaver-demo, select Gears, then Preview.
With 9.1 I get a nice demo, but with 9.2 I just get a blank
screen. No error message, no crash, but no display either.